User profiles for J. Willems

Jan Willems

- Verified email at esat.kuleuven.be - Cited by 27969

Jan Willem Polderman

- Verified email at utwente.nl - Cited by 2926

[PDF][PDF] Hepcidin: from discovery to differential diagnosis.

EHJM Kemna, H Tjalsma, JL Willems, DW Swinkels - 2008 - repository.ubn.ru.nl
Although iron is essential for living organisms to survive, its reactive properties require strict
regulation in order to prevent toxic effects. Hepcidin, a liver produced peptide hormone, is …

Guideline for diagnosis and treatment of subacromial pain syndrome: a multidisciplinary review by the Dutch Orthopaedic Association

…, R Naber, T De Ruiter, J Willems, J Winters… - Acta …, 2014 - Taylor & Francis
Treatment of “subacromial impingement syndrome” of the shoulder has changed drastically
in the past decade. The anatomical explanation as “impingement” of the rotator cuff is not …

Isolated single coronary artery: a review of 50 000 consecutive coronary angiographies

…, F Van de Werf, J Piessens, J Willems… - European Heart …, 1992 - academic.oup.com
… [28] Willems JL, Renkens S, de Wei M, Piessens J. Development of and experience with the
coronary angiography and PTCA information systems at Leuven University. In: Meester GT, …

Dissipative dynamical systems part I: General theory

JC Willems - Archive for rational mechanics and analysis, 1972 - Springer
The first part of this two-part paper presents a general theory of dissipative dynamical systems.
The mathematical model used is a state space model and dissipativeness is defined in …

Dissipative dynamical systems part II: Linear systems with quadratic supply rates

JC Willems - Archive for rational mechanics and analysis, 1972 - Springer
This paper presents the theory of dissipative systems in the context of finite dimensional
stationary linear systems with quadratic supply rates. A necessary and sufficient frequency …

[BOOK][B] Introduction to mathematical systems theory: a behavioral approach

JC Willems, JW Polderman - 1997 - books.google.com
… The first author (JW Polderman) has had primary responsibility for Chapters 2 to 6, and
Appendix A, while the second author (JC Willems) took primary responsibility for the Preface, …

Least squares stationary optimal control and the algebraic Riccati equation

J Willems - IEEE Transactions on automatic control, 1971 - ieeexplore.ieee.org
The optimal control of linear systems with respect to quadratic performance criteria over an
infinite time interval is treated. Both the case in which the terminal state is free and that in …

[PDF][PDF] Passivity, feedback equivalence, and the global stabilization of minimum phase nonlinear systems

CI Byrnes, A Isidori, JC Willems - IEEE Transactions on …, 1991 - homes.esat.kuleuven.be
In this paper, we derive conditions under which a nonlinear system can be rendered passive
via smooth state feedback and we show that, as in the case linear systems, this is possible …

[PDF][PDF] Paradigms and puzzles in the theory of dynamical systems

JC Willems - IEEE Transactions on automatic control, 1991 - homes.esat.kuleuven.be
HE purpose of this article is to give a self-contained exposition of an approach to mathematical
models, in particular, to a theory of dynamical systems. This approach leads to an …

Exploring global changes in nitrogen and phosphorus cycles in agriculture induced by livestock production over the 1900–2050 period

…, DP Van Vuuren, J Willems… - Proceedings of the …, 2013 - National Acad Sciences
Crop-livestock production systems are the largest cause of human alteration of the global
nitrogen (N) and phosphorus (P) cycles. Our comprehensive spatially explicit inventory of N …